Chemical dating of the Great Barrier Reef's sensitive branching corals reveals a history of massive die-offs over the past century, particularly in the past 30 years, from which these corals have not recovered.

The Government has released a wide-ranging report into allegations made by Four Corners over the Murray-Darling Basin Plan, and it reveals ICAC is taking an interest in the damning claims, Linton Besser writes.

An interim report into explosive allegations aired by the ABC's Four Corners program, finds NSW's water compliance and enforcement "have been ineffectual and require significant and urgent improvement".

As the Tasmanian Government moves to reopen contentious four-wheel drive tracks on the west coast, there's anger over more damage caused by vehicles being driven around in circles in the Arthur-Pieman area.

Victoria's environmentally and politically sensitive central highlands contribute nearly $1 billion to the state's economy every year, and that would be boosted if native timber logging was stopped, a new report says.

In the NT to give a boost to the ailing Country Liberals, the Prime Minister attacked Labor over its energy policy and told Chief Minister Michael Gunner to "pull the trigger" and get on with fracking.

Two outer-suburban councils are challenging the future of Victoria's biggest landfill site in an upcoming legal case. The councils claim an expansion approved by the State Government hasn't given enough consideration to the impact on local communities.